15530240133 has 16 divisors (see below), whose sum is σ = 23009707200. Its totient is φ = 10352618640.

The previous prime is 15530240119. The next prime is 15530240137. The reversal of 15530240133 is 33104203551.

15530240133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15530240133 - 2⁶ = 15530240069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 15530240097 and 15530240106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15530240137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536398 + ... + 564608.

It is an arithmetic number, because the mean of its divisors is an integer number (1438106700).

Almost surely, 2^15530240133 is an apocalyptic number.

It is an amenable number.

15530240133 is a deficient number, since it is larger than the sum of its proper divisors (7479467067).

15530240133 is a wasteful number, since it uses less digits than its factorization.

15530240133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48609 (or 48603 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 15530240133 its reverse (33104203551), we get a palindrome (48634443684).

The spelling of 15530240133 in words is "fifteen billion, five hundred thirty million, two hundred forty thousand, one hundred thirty-three".